I need to consolidate data from PLC's on two DH485 networks and serve them to a SCADA system over Ethernet for access using a Kepware OPC server. The data needs to be re-organized before presenting to the SCADA system so a simple Ethernet to DH485 gateway will not do.
The PLC will have no other purpose than acting as a data concentrator and will have no hardwired I/O. A ControlLogix rack with a 1756-DH485 module would be an easy solution but is way overkill for what we are trying do. Any recommendations on Rockwell's lower-end processors that support multiple DH485 networks. Rockwell's offerings in the mid/low end have grown so much in recent years I can't keep up with the capabilities of each line. I'm not interested in considering the Micro800 line. Haven't had good experiences with them.
The PLC will have no other purpose than acting as a data concentrator and will have no hardwired I/O. A ControlLogix rack with a 1756-DH485 module would be an easy solution but is way overkill for what we are trying do. Any recommendations on Rockwell's lower-end processors that support multiple DH485 networks. Rockwell's offerings in the mid/low end have grown so much in recent years I can't keep up with the capabilities of each line. I'm not interested in considering the Micro800 line. Haven't had good experiences with them.